[infinispan-issues] [JBoss JIRA] (ISPN-1578) Send the base hash code for of each Hot Rod endpoint back to clients

[Galder Zamarreño (Updated) (JIRA)]

     [ https://issues.jboss.org/browse/ISPN-1578?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Galder Zamarreño updated ISPN-1578:
-----------------------------------

              Status: Pull Request Sent  (was: Coding In Progress)
    Git Pull Request: https://github.com/infinispan/infinispan/pull/701

    
> Send the base hash code for of each Hot Rod endpoint back to clients
> --------------------------------------------------------------------
>
>                 Key: ISPN-1578
>                 URL: https://issues.jboss.org/browse/ISPN-1578
>             Project: Infinispan
>          Issue Type: Enhancement
>          Components: Cache Server
>            Reporter: Galder Zamarreño
>            Assignee: Galder Zamarreño
>             Fix For: 5.1.0.CR1
>
>
> Make Hot Rod server protocol 1.1 send a 32-bit hash or similar of the JGroups address, and make both clients and servers hash on that.
> The benefits of doing this, instead of relying on the Hot Rod endpoint are multiple, see attached Infinispan Dev list thread for more info.
> This requires changing Hot Rod protocol 1.1 which is introduced in 5.1: https://docs.jboss.org/author/display/ISPN/Hot+Rod+Protocol+-+Version+1.1
> This is pretty much going back to what we had in 1.0, except for the fact that we only send one host:port:hashcode combo for each node, as opposed to for each virtual node. As shown in the updated protocol documentation, this means that there's a contract now set in terms of hash code normalization and virtual node hash code production.
> This means as well that we don't need the hash seed functionality any more, at expense of a few extra bytes in the payload.

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